Abstract
The invention relates to a method and arrangement for creating a virtual keyboard for a terminal (800) used in a cellular network. The virtual keyboard is generated using an IR transceiver arrangement (12) in which a reflection from an obstacle (15) placed in the field of IR transmitters is registered by discrete IR receivers. The received reflection data are processed in a neural network arrangement (33). The purpose of the data processing is to find out the virtual key position/function that the received reflection data corresponds to.
Patent family as of 20.9.2021
EP1168233 A2 20020102 EP20010660121 20010625
EP1168233 A3 20090121 EP20010660121 20010625
EP2413219 A1 20120201 EP20110185756 20010625
FI112706 B 20031231 FI20000001535 20000628
FI20001535 A0 20000628 FI20000001535 20000628
HK1166867 A1 20121109 HK20120107363 20120726
JP2002099382 A2 20020405 JP20010197039 20010628
US2002006807 AA 20020117 US20010892000 20010626
US6956506 BB 20051018 US20010892000 20010626
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| Original language | English |
|---|---|
| Patent number | US6956506 B2 |
| IPC | H04M 1/02 |
| Priority date | 28/06/00 |
| Publication status | Published - 18 Oct 2005 |
| MoE publication type | H1 Granted patent |